GB618438A - Improvements relating to electric subtracting circuits - Google Patents
Improvements relating to electric subtracting circuitsInfo
- Publication number
- GB618438A GB618438A GB1336746A GB1336746A GB618438A GB 618438 A GB618438 A GB 618438A GB 1336746 A GB1336746 A GB 1336746A GB 1336746 A GB1336746 A GB 1336746A GB 618438 A GB618438 A GB 618438A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- anode
- cathode
- valves
- proportional
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000010079 rubber tapping Methods 0.000 abstract 2
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/50—Amplifiers in which input is applied to, or output is derived from, an impedance common to input and output circuits of the amplifying element, e.g. cathode follower
- H03F3/52—Amplifiers in which input is applied to, or output is derived from, an impedance common to input and output circuits of the amplifying element, e.g. cathode follower with tubes only
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/34—DC amplifiers in which all stages are DC-coupled
- H03F3/36—DC amplifiers in which all stages are DC-coupled with tubes only
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
618,438. Valve amplifying circuits. SCOLES, G. J., and METROPOLITAN - VICKERS ELECTRICAL CO., Ltd. May 2, 1946, No. 13367. [Class 40 (vi)] An output voltage ¢ (v2 - v1) proportional to the difference between the input voltages v1, v2 applied to the grids of two valves A, B, each having an anode load R and a cathode load R, is taken from the tapping point of a potentiometer R1, connected between the anode of one valve and the cathode of the other valve. In a modification (Fig. 3, not shown), the output voltage is taken between the tapping points of two potentiometers, one connected between the anode of the first valve and the cathode of the second valve, and the other connected between the cathode of the first valve and the anode of the second valve. The valves may have a common anode load (Fig. 4, not shown), in which case a voltage proportional to the sum of the input voltages appears at the anodes. By using a number of valves, an output proportional to the difference between any two of a number of voltages can be obtained (Fig. 5, not shown).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1336746A GB618438A (en) | 1946-05-02 | 1946-05-02 | Improvements relating to electric subtracting circuits |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1336746A GB618438A (en) | 1946-05-02 | 1946-05-02 | Improvements relating to electric subtracting circuits |
Publications (1)
Publication Number | Publication Date |
---|---|
GB618438A true GB618438A (en) | 1949-02-22 |
Family
ID=10021678
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1336746A Expired GB618438A (en) | 1946-05-02 | 1946-05-02 | Improvements relating to electric subtracting circuits |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB618438A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2877347A (en) * | 1954-04-08 | 1959-03-10 | Philco Corp | Signal matrixing circuit |
DE1255711B (en) * | 1957-08-27 | 1967-12-07 | Philips Nv | Circuit arrangement for a three-color television system for generating a corrected brightness signal for the color television signal |
-
1946
- 1946-05-02 GB GB1336746A patent/GB618438A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2877347A (en) * | 1954-04-08 | 1959-03-10 | Philco Corp | Signal matrixing circuit |
DE1255711B (en) * | 1957-08-27 | 1967-12-07 | Philips Nv | Circuit arrangement for a three-color television system for generating a corrected brightness signal for the color television signal |
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